27/05/2026
The ARIC and RAP experiment continues.
I was unable to get my 13.9 Mid to function 100% with either the C or C- variant. has the C variant that functioned 100% with 12.5 Car, so I opined that Carbine gas might be the way to go.
The result was a spare parts bin upper build using a Centurion Arms 12.5 Car barrel w/ FSB. I opted to use their legacy CMR cutout handguard and RRA riser for a unique "vibe" and I think it turned out eye-pleasing with the EXPS3-1. The dot only config is growing on me.
The optic centerline is at 3.25" and close to a 1.7" riser config. I cannot use the irons without removing the optic, so I might swap to the XPS variant or a different optic setup later if I care enough.
Also, shout out to and for the superb 3P15 Plan B muzzle device. It's one of my favorites.
Check out RD's https://silencerresource.com/ for solid MD/Suppressor data.
Range Report:
Carbine gas did the job and the C- variant was functioning unsuppressed. I did try a few rounds suppressed (standard pressure) but it was definitely gassy and punchy as expected. I have the C variant in currently and will field that next time out to confirm function.
Note that the C and C- variants are not intended to be used suppressed, so I've also reached out to the ARIC engineer to request the M variant as it has additional vents to counter the increased gas.
I'm glad that I got this working and can move on to further experimentation like maybe 300 BO and low pressure cans.
I want this to be successful because this setup is such a vibe paired with the AX556/ADAC lower.
That is all for now. Deuces.
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